| Noun | 1.branchiopodan - aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feedingbranchiopod, branchiopod crustaceancrustacean - any mainly aquatic arthropod usually having a segmented body and chitinous exoskeletondaphnia, water flea - minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennaefairy shrimp - small freshwater branchiopod having a transparent body with many appendages; swims on its backArtemia salina, brine shrimp - common to saline lakestadpole shrimp - a kind of branchiopod crustacean | Adj. | 1.branchiopodan - of or relating to or characteristic of the subclass Branchiopodabranchiopod, branchiopodous |